20 watt monocrystalline solar panel with 1) Power:300W 2).for solar product use 3).CE certificate 20 watt solar panel18V, monocrystalline sillicon module, encapsulated with glass, ... requirement. 2). Refer to the technology,(A). Wmp range: 0.01W-6W, to be sealed with epoxy resin on PCB ... or to be sealed in plastic directly.(B). Wmp range: 0.01W-15W, to be encapsulated with PET, on PCB (printed ...